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A019969 Decimal expansion of tangent of 71 degrees. 1
2, 9, 0, 4, 2, 1, 0, 8, 7, 7, 6, 7, 5, 8, 2, 2, 8, 0, 2, 5, 7, 9, 3, 2, 5, 5, 3, 4, 5, 2, 7, 0, 9, 1, 2, 5, 4, 0, 3, 1, 2, 6, 1, 9, 2, 1, 8, 4, 6, 2, 2, 1, 6, 6, 8, 3, 6, 3, 0, 2, 4, 7, 1, 1, 3, 9, 3, 7, 3, 9, 8, 9, 5, 2, 7, 7, 3, 0, 3, 3, 9, 8, 5, 0, 1, 1, 1, 4, 3, 0, 9, 6, 7, 6, 8, 8, 3, 9, 6 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Also the decimal expansion of cotangent of 19 degrees. - Ivan Panchenko, Sep 01 2014

LINKS

Ivan Panchenko, Table of n, a(n) for n = 1..1000

EXAMPLE

2.904210877675822802579325534527091254031261921846221668363...

MATHEMATICA

RealDigits[Tan[71 Degree], 10, 120][[1]] (* Harvey P. Dale, Apr 07 2014 *)

PROG

(PARI) default(realprecision, 100); tan(71*Pi/180) \\ G. C. Greubel, Nov 21 2018

(MAGMA) SetDefaultRealField(RealField(100)); R:= RealField(); Tan(71*Pi(R)/180); // G. C. Greubel, Nov 21 2018

(Sage) numerical_approx(tan(71*pi/180), digits=100) # G. C. Greubel, Nov 21 2018

CROSSREFS

Cf. A019880 (sine of 71 degrees).

Sequence in context: A201893 A264920 A324833 * A185362 A140239 A221200

Adjacent sequences:  A019966 A019967 A019968 * A019970 A019971 A019972

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified December 3 10:45 EST 2021. Contains 349462 sequences. (Running on oeis4.)